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United States Patent | 6,025,883 |
Jun | February 15, 2000 |
A resolution conversion apparatus for a display device which converts input image signals to image signals having different resolution is provided. The resolution conversion apparatus for a display device can increase or decrease the number of scanning lines by using interpolation function to prevent the non-linear distortion due to the nonuniform insertion of scanning lines. The resolution conversion apparatus for a display device can also vary the interpolation function according to the frequency of image information to compensate the decrease of sharpness resulting from the conventional interpolation method using simple proportional values.
Inventors: | Jun; Sung-Gon (Kyunggi-do, KR) |
Assignee: | SamSung Electronics Co., Ltd. (Kyungki-do, KR) |
Appl. No.: | 951973 |
Filed: | October 16, 1997 |
Oct 16, 1996[KR] | 96-46292 |
Current U.S. Class: | 348/458; 348/441; 348/451 |
Intern'l Class: | H04N 007/01; H04N 011/20 |
Field of Search: | 348/441,458,459,445,446,448,556,913 |
3742135 | Jun., 1973 | Baldwin. | |
3830971 | Aug., 1974 | Van de Polder. | |
3970776 | Jul., 1976 | Kinuhata et al. | |
5386236 | Jan., 1995 | Hong | 348/445. |
5485217 | Jan., 1996 | Park | 348/445. |
5517588 | May., 1996 | Kondo | 348/445. |
5534936 | Jul., 1996 | Kim | 348/448. |
5793433 | Aug., 1998 | Kim et al. | 348/458. |